. >> he had already made his travel plans to fly back to michigan and spend the christmas holiday with his family. brian's attention to detail had ensured that all the christmas gifts he had meticulously selected for his family had already been bought and sent in the mail prior to his arrival. brian did ultimately come home that christmas. we buried him not far from the house that he was raised in just prior to christmas day. >> his still grieving cousin speaking before the house oversight committee. the committee also heard from atf whistleblowers. >> we weren't giving guns to people who were hunting bear, we were giving guns to people who were killing other humans. >> rather than meet the wolf head-on, we sharpened his teeth, added number to his claw. all the while we sad idly by watching, tracking and noting as he became a more efficient and effective predator. >> remember the idea was to give guns to gun runners, to drug runners, to mexican drug cartels, track where those weapons were and ultimately -- ultimately on the mexican side of the border arrest the people and kind of figur